Arrow V351-LR-03-V3S-V3L Polished Brass US3 Grade 2 Revolution V3 Touchscreen Lever With Key Override, specially designed as a high tech, aesthetic pleasing security solution enhancing everyday lock systems. This lock stores up to 25 unique pin codes, eliminating the cost of keys, and you can delete a single pin access code if necessary. The revolution V3 is ideal for healthcare facilities, offices, retail environments, multi-family, hospitality, government facilities, as well as K-12 school environments. This lock has an ANSI A117.1 Accessibility Code, and its ANSI/BHMA A156.36, Grade 2 Certified. This interactive voice guided programming device, is trilingual (English, Spanish, and French), and operates on 4 "AA" batteries. This lock fits a standard door preperation with 2-1/8" through hole and 1" bore hole for latch, it has an adjustable 2-3/4" to 2-3/8" inch backset, and it fits doors 1-3/8" to 1-3/4" inches thick.